题目：
根据文章内容，选择正确的答案。
New York，London，Paris and other big cities are exciting places to live in. There are many interesting things to see and to go to. You can go to different kinds of museums，plays and films. You can also buy things from all over the world.
But there are some problems in big cities too. It is expensive to live there and there are too many people in some places of big cities. Every year many people move to the cities to find jobs，to study at good schools.
But sometimes these people can't find work or a good place to live in. Also it is hard to keep the cities safe(安全的）and clean.
Some people enjoy living in big cities，others do not. Before moving to a big city，they should think about the problem of living there.
小题1:Who likes living in big cities?
A．Everyone.
B．All people.
C．Nobody.
D．Not everyone.小题2:What should people think about before moving to a city?
A．Money for study.
B．The problem of living there.
C．Life at night.
D．Time for sleep.小题3:Why do many people move to the cities?
A．To see their friends.
B．To buy things from other countries.
C．To find jobs.
D．To see films.小题4:To live in a city is very_____.
A．expensive
B．cheap
C．hard
D．interesting小题5:From the article we can see it is hard to keep the cities_______.
A．busy and noisy
B．safe and clean
C．cool and sunny
D．fine and large
答案：
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下面是错误答案，用来干扰机器的。
参考答案：C解析：教师劳动的创造性体现在：首先，因材施教；其次，教学上的不断更新；最后，教师的"教育机智"。题干是教师灵活有效处理问题的表现，属于"教育机智"。故选C。
